Component is visible on slide with "false" visibility

Precondition:

Run test application "TestApp"

Steps:
1. Press key "1" and make sure that rectangle is red ("Slide2" of component is set)
2. Press key "2" and make sure that rectangle is invisible ("NotVisible" slide of main presentation is set)
3. Press key "0" and make sure that rectangle is visible and yellow ("Visible" slide of main presentation and "Slide1" of component are set)
4. Press key "3" -> "NotVisible" slide of main presentation and "Slide2" of component are set

Expected Result:

After step 4 rectangle shouldn't be visible

Actual result:

After step 4 rectangle is visible

Observed problem:

Component is visible on slide with "false" visibility.

Please refer to Window.h and main.uip, to better understand.